Principal Investigator

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Prof. Jianwei (John) Miao

Office: 3-108 Knudsen
Phone: (310) 206-2645

Dr. Miao is a professor in the Department of Physics and Astronomy and California NanoSystems Institute (CNSI) at UCLA. He is also the Deputy Director of STROBE, an NSF Science and Technology Center on Real-Time Functional Imaging, which aims to tackle major scientific challenges by improving imaging technologies. Dr. Miao's research interests lie in the interplay of physics, materials science, nanoscience, and biology. He has developed groundbreaking physical methods for high-resolution 3D imaging of nanoscale materials and biological specimens. He pioneered coherent diffraction imaging (CDI), a lensless imaging (or computational microscopy) technique that is under rapid development worldwide. Recently, he pioneered atomic electron tomography (AET) for 3D structure determination of crystal defects and disordered systems at the single-atom level. Using advanced electron microscopies, X-ray free electron lasers, high harmonic generation, and synchrotron radiation, his group will continue to push the frontiers of high-resolution 3D X-ray and electron imaging and to pursue their applications in the physical and biological sciences. MORE

Visiting Scientists

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Đông Du Mai


Đông Du joined the Coherent Imaging Group in June 2018 as a visiting scholar from ELI Beamlines, Prague, Czech Republic. He received his Ph.D. (Dr. rer. nat.) at the Georg-August-University in Göttingen, Germany, in the field of semiconductor physics in 2009 and continued as a postdoctoral fellow at the Courant Research Centre "Nano-Spectroscopy and X-ray Imaging", Göttingen. He joined ELI Beamlines, Prague, in 2016 as a senior scientist for laser-driven secondary X-ray sources. His research focuses on the development of high-brilliance pulsed VUV/X-ray sources for time-resolved spectroscopy and imaging. At UCLA, he will take the opportunity to bridge ELI's short-pulse X-ray Lab with UCLA's CDI unique expertise for a long-term collaboration.

Postdoctoral Scholars

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Jihan Zhou


Jihan Zhou received his B. S. in Chemistry from Peking University in 2009. After that, he studied polymer physics & peptide-mediated siRNA delivery system under the supervision by Prof. Dehai Liang and received his Ph. D. from Peking University in 2014. From Aug 2011 to Apr 2012, he worked in Prof. Sonia Contera’s Biophysics Group at Oxford University as a Visiting Scholar studying liposome mechanics. He joined in the Miao group at UCLA as a Postdoctoral Fellowship in September 2014. His research interest lies in atomic electron tomography (AET) of nanomaterials such as nanoalloy catalysts, metal-semiconductor interfaces and quasi/amorphous materials.

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Xuezeng Tian

Office: 2-240A Knudsen

Xuezeng joined the Miao Group in January 2017. He graduated at Shandong University in 2009 with B.S. in Physics. After that he obtained his Ph. D. from the Institute of Physics, Chinese Academy of Sciences in 2014. During his Ph.D., he worked on in situ electrical/optical TEM with Prof. Xuedong Bai. After that, he became a research fellow in a joint program between the National University of Singapore and UC Berkeley, working towards imaging of dynamics in nanomaterials and biological samples alive with in situ liquid cell TEM. During his past research, he has become proficient in electron microscopy (theory, experiments and image processing), thin films & nanomaterials (preparation and characterization), micro fabrication techniques, and in situ technologies (electrical, thermal, optical and liquid cells). His main research interest lies in atomic electron tomography (AET) of catalytic and 2D materials. His long-term interest is to combine his in situ expertise with the AET method.

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Dennis Kim

Office: 3-306 Knudsen
Phone: (310) 206-6977

Dennis received his B.S. in Chemistry from the University of Massachusetts Amherst in 2011. He received his Ph.D. in Materials Science from the California Institute of Technology in 2017 investigating materials thermodynamics using inelastic neutron scattering and ab initio computational methods. He joined the Coherent Imaging Group as the STROBE postdoctoral fellow in the summer of 2017 and plans to utilize the group's recent advances in imaging techniques to study various materials and their properties.

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Fan Zhu

Office: 2-240A Knudsen

Fan joined Miao Group as a STROBE postdoctoral fellow in Oct 2018. He received his Ph.D. degree in Materials Science from Tohoku University in 2015 focusing on the structure characterization of disordered materials by Cs-corrected HAADF-STEM and angstrom-beam electron diffraction (ABED). In Miao Group, his interest lies in the characterization of complex systems by utilizing the state-of-the-art atomic electron tomography (AET).

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Yakun Yuan

Office: 2-240A Knudsen

Yakun Yuan received his B.S. in Physics and Applied Mathematics from Peking University in 2013. After that, he obtained Ph.D degree in Materials Science and Engineering from Pennsylvania State University in 2018. His Ph.D research was focused on studying properties of complex oxides away from ground states. He developed extensive skills in atomic structure characterization of complex oxides heterostructures using phase-retrieval X-ray technique known as coherent Bragg rods analysis (COBRA), as well as ultrafast time-resolved optical pump-probe techniques. He joined the Coherent Imaging Group as the STROBE postdoctoral in December 2018 and continued his interests in revealing novel behaviors of materials by using the state-of-the-art multiscale characterization techniques including CDI and AET.

Graduate Students

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Arjun Rana


Arjun received his B.S. in Physics from Rutgers University in 2011. He joined the Miao group in the spring of 2014 and received his M.S. in Physics from UCLA in 2015. Arjun’s main interests lie in algorithm development and hardware design. Currently, he is working on the development of new CDI methods. His hobbies include snowboarding and riding his motorcycle.

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Yuan Hung (Mike) Lo


Mike joined Miao group in 2015 as a graduate student. As a bioengineer in training, he is interested in the intersection of high resolution imaging science and their applications in medicine and bioengineering. His research focus in coherent diffractive imaging has led him to develop novel ways to capture and analyze high resolution dynamic information from organic and inorganic specimens. With this new technique, he hopes to push the spatiotemporal resolution limits of diffractive imaging to reveal never-before-seen phenomena. Outside of research, Mike is interested in algorithm development, machine learning, design and arts, as well as the game of basketball.

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Yao Yang


Yao joined the Coherent Imaging Group in March 2017 as a graduate student. He received B.S. degree in Materials Science and Engingeering from Tsinghua University in 2015. He is interested in the 3D reconstruction of materials by combining advanced algorithm and TEM technique. As a student major in materials science, he believe that with the development of AET technique, he can get the inner sight of materials under different behaviors, such as mechanism of Martensite transformation and growth of nano-materials. Besides research, Yao also likes playing basketball and tennis, as well as video games.

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Dillan Chang


Dillan received his B.S. in Engineering Physics and Computer Science from Cornell University, and joined the Miao group in 2018 as a graduate student. His research interest lies in applying computational methods with atomic electron tomography (AET) and searching for new domains of materials that can be probed with improved methodology. Dillan is an avid fan of podcasts, competitive video games, and national parks.


Changyong Song

Associate Professor
Department of Physics, Pohang University of Science and Technology
South Korea

Huaidong Jiang

Professor, School of Physical Science and Technology
ShanghaiTech University, China

Adrian Mancuso

Group Leader and Leading Scientist
Europen XFEL, Germany

Russell Fung

Senior Scientist
Department of Physics
University of Wisconsin-Milwaukee

Benjamin P. Fahimian

Clinical Associate Professor
Radiation Oncology, Radiation Physics
Stanford University

Edwin Lee

Semes, South Korea

Jose A. Rodriguez

Assistant Professor
Department of Chemistry & Biochemistry

Yunzhe (Janice) Zhao

Staff Scientist
Himax Imaging Inc.

Chien-Chun Chen

Assistant Professor
Department of Physics
National Sun Yat-sen University, Taiwan

Chun Zhu

Staff, AT&T Labs

Mary C. Scott

Assistant Professor
Department of Materials Science & Engineering
UC Berkeley and LBNL

Sara Salha

Data Scientist, Inc.

Lu Rong

Assistant Researcher
College of Applied Sciences
Beijing University of Technology, China

Matthias Bartels

Scientist, Philips Research

Zhifeng Huang

Staff Scientist
Carl ZEISS X-ray Microscopy Inc.

Maryam Bostani

Assistant Clinical Professor
David Geffen School of Medicine at UCLA

Carlos Sato

Brazilian Synchrotron Light Source

Marcus Gallagher-Jones

Postdoctoral Scholar
Department of Chemistry and Biochemistry, UCLA

Rui Xu

Research Scientist
Department of Electrical Engineering
University of Southern California

AJ Pryor

Lead Data Scientist

Yongsoo Yang

Assistant Professor
Department of Physics, Korea Advanced Institute of Science & Technology (KAIST)
South Korea

Jianhua Zhang

Ph.D. Candidate
School of Physical Science and Technology, ShanghaiTech University